Rust implementation of NextGraph, a Decentralized and local-first web 3.0 ecosystem https://nextgraph.org
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nextgraph-rs/ng-app/src/store.ts

113 lines
3.5 KiB

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import { writable, readonly, derived } from "svelte/store";
import ng from "./api";
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let all_branches = {};
export const opened_wallets = writable({});
/// { wallet:, id: }
export const active_wallet = writable(undefined);
export const wallets = writable({});
export const has_wallets = derived(wallets,($wallets) => Object.keys($wallets).length);
export const active_session = writable(undefined);
export const set_active_session = function(session) {
let v = session.users.values().next().value;
v.branches_last_seq = Object.fromEntries(v.branches_last_seq);
let users = Object.fromEntries(session.users);
active_session.set(users);
};
export { writable, readonly, derived };
const close_active_wallet = function() {
active_session.set(undefined);
active_wallet.update((w) => {
delete w.wallet;
});
}
const branch_commits = (nura, sub) => {
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// console.log("branch_commits")
// const { subscribe, set, update } = writable([]); // create the underlying writable store
// let unsub = () => {};
// return {
// load: async () => {
// console.log("load")
// unsub = await ng.doc_sync_branch(nura, async (commit) => {
// console.log(commit);
// update( (old) => {old.unshift(commit); return old;} )
// });
// },
// subscribe: (run, invalid) => {
// console.log("sub")
// let upper_unsub = subscribe(run, invalid);
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// return () => {
// upper_unsub();
// unsub();
// }
// }
// // set: (value) => {
// // localStorage.setItem(key, toString(value)); // save also to local storage as a string
// // return set(value);
// // },
// // update,
// };
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return {
load: async () => {
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let already_subscribed = all_branches[nura];
if (!already_subscribed) return;
if (already_subscribed.load) {
await already_subscribed.load();
already_subscribed.load = undefined;
}
},
subscribe: (run, invalid) => {
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let already_subscribed = all_branches[nura];
if (!already_subscribed) {
const { subscribe, set, update } = writable([]); // create the underlying writable store
let count = 0;
let unsub = () => {};
already_subscribed = {
load: async () => {
unsub = await ng.doc_sync_branch(nura, async (commit) => {
console.log(commit);
update( (old) => {old.unshift(commit); return old;} )
});
},
increase: () => {
count += 1;
return readonly({subscribe});
},
decrease: () => {
count -= 1;
if (count == 0) {
unsub();
delete all_branches[nura];
}
},
}
all_branches[nura] = already_subscribed;
}
let new_store = already_subscribed.increase();
let read_unsub = new_store.subscribe(run, invalid);
return () => {
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read_unsub();
already_subscribed.decrease();
}
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}
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}
};
export default branch_commits;